Home / 879,567.60-1,213,933.80-557,307.88

Finding the Fourth Proportional to 879,567.60, 1,213,933.80 and 557,307.88

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Solution

The fourth proportional to 879,567.60, 1,213,933.80 and 557,307.88 is: 769,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,567.60 : 1,213,933.80 = 557,307.88 : x
  2. Step 2: Convert to fraction form
    879,567.60/1,213,933.80 = 557,307.88/x
  3. Step 3: Cross multiply
    879,567.60x = 1,213,933.80 × 557,307.88
  4. Step 4: Simplify right side
    879,567.60x = 676,534,872,538.34
  5. Step 5: Solve for x
    x = 676,534,872,538.34/879,567.60
  6. Step 6: Final answer
    x = 769,167.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.